Measurement of hydrocarbon fuel concentration by 3.39 μm He-Ne laser infrared absorption technique

Sadami Yoshiyama, Yoshisuke Hamamoto, Eiji Tomita, Ken ichi Minami

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The 3.39 μm He-Ne infrared laser absorption technique is useful for measuring hydrocarbon concentration. To measure the concentration of propane or methane in hydrocarbon fuels, molar absorption coefficients for 3.39 μm wavelength were investigated in the temperature range 285 to approximately 420 K and in the pressure range 100 to approximately 800 kPa. It was found that (1) the absorption coefficient ε is independent of temperature, and (2) the pressure has little effect on ε in propane, but a strong effect on ε in methane. By means of this technique, the fuel concentration in the vicinity of a spark plug and HC concentration in an exhaust pipe of a spark ignition engine were measured under the condition of no residual gas and homogeneous mixture. For the lean mixture operating condition, although cycle-to-cycle fluctuation of the fuel concentration was very small, the fluctuation of pressure in the cylinder was large.

Original languageEnglish
Pages (from-to)1200-1205
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume62
Issue number595
Publication statusPublished - Mar 1996
Externally publishedYes

Fingerprint

hydrocarbon fuels
Infrared absorption
infrared absorption
Hydrocarbons
Propane
Lasers
Methane
lasers
Spark plugs
Infrared lasers
propane
Engine cylinders
Internal combustion engines
absorptivity
methane
spark plugs
spark ignition
Pipe
cycles
residual gas

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Measurement of hydrocarbon fuel concentration by 3.39 μm He-Ne laser infrared absorption technique. / Yoshiyama, Sadami; Hamamoto, Yoshisuke; Tomita, Eiji; Minami, Ken ichi.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 62, No. 595, 03.1996, p. 1200-1205.

Research output: Contribution to journalArticle

@article{37a3661a024e46f3ae811e057f9aa618,
title = "Measurement of hydrocarbon fuel concentration by 3.39 μm He-Ne laser infrared absorption technique",
abstract = "The 3.39 μm He-Ne infrared laser absorption technique is useful for measuring hydrocarbon concentration. To measure the concentration of propane or methane in hydrocarbon fuels, molar absorption coefficients for 3.39 μm wavelength were investigated in the temperature range 285 to approximately 420 K and in the pressure range 100 to approximately 800 kPa. It was found that (1) the absorption coefficient ε is independent of temperature, and (2) the pressure has little effect on ε in propane, but a strong effect on ε in methane. By means of this technique, the fuel concentration in the vicinity of a spark plug and HC concentration in an exhaust pipe of a spark ignition engine were measured under the condition of no residual gas and homogeneous mixture. For the lean mixture operating condition, although cycle-to-cycle fluctuation of the fuel concentration was very small, the fluctuation of pressure in the cylinder was large.",
author = "Sadami Yoshiyama and Yoshisuke Hamamoto and Eiji Tomita and Minami, {Ken ichi}",
year = "1996",
month = "3",
language = "English",
volume = "62",
pages = "1200--1205",
journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",
issn = "0387-5016",
publisher = "Japan Society of Mechanical Engineers",
number = "595",

}

TY - JOUR

T1 - Measurement of hydrocarbon fuel concentration by 3.39 μm He-Ne laser infrared absorption technique

AU - Yoshiyama, Sadami

AU - Hamamoto, Yoshisuke

AU - Tomita, Eiji

AU - Minami, Ken ichi

PY - 1996/3

Y1 - 1996/3

N2 - The 3.39 μm He-Ne infrared laser absorption technique is useful for measuring hydrocarbon concentration. To measure the concentration of propane or methane in hydrocarbon fuels, molar absorption coefficients for 3.39 μm wavelength were investigated in the temperature range 285 to approximately 420 K and in the pressure range 100 to approximately 800 kPa. It was found that (1) the absorption coefficient ε is independent of temperature, and (2) the pressure has little effect on ε in propane, but a strong effect on ε in methane. By means of this technique, the fuel concentration in the vicinity of a spark plug and HC concentration in an exhaust pipe of a spark ignition engine were measured under the condition of no residual gas and homogeneous mixture. For the lean mixture operating condition, although cycle-to-cycle fluctuation of the fuel concentration was very small, the fluctuation of pressure in the cylinder was large.

AB - The 3.39 μm He-Ne infrared laser absorption technique is useful for measuring hydrocarbon concentration. To measure the concentration of propane or methane in hydrocarbon fuels, molar absorption coefficients for 3.39 μm wavelength were investigated in the temperature range 285 to approximately 420 K and in the pressure range 100 to approximately 800 kPa. It was found that (1) the absorption coefficient ε is independent of temperature, and (2) the pressure has little effect on ε in propane, but a strong effect on ε in methane. By means of this technique, the fuel concentration in the vicinity of a spark plug and HC concentration in an exhaust pipe of a spark ignition engine were measured under the condition of no residual gas and homogeneous mixture. For the lean mixture operating condition, although cycle-to-cycle fluctuation of the fuel concentration was very small, the fluctuation of pressure in the cylinder was large.

UR - http://www.scopus.com/inward/record.url?scp=0030103711&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030103711&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0030103711

VL - 62

SP - 1200

EP - 1205

JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

SN - 0387-5016

IS - 595

ER -